Schorl and Goshenite - NAM 040

Measurements:  34 x 28 x 20 mm

Description:  A cluster of schorl crystals (with some parts being semi-transparent) along with a number of goshenite crystals. 

The specimen has very little damage, only a few pressure marks.

Weight of Specimen:  15.1 g

Chemical Composition:   NaFe²⁺₃Al₆Si₆O₁₈(BO₃)₃(OH)₄  (schorl)
                                         Be₃Al₂Si₆O₁₈  (goshenite)    
                                  
Hardness on Mohs Scale:  (schorl) 7.5 
                                           (goshenite)  7.5–8

Location:  Erongo, Namibia.

Specimen Code:  NAM 040

R 80

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